This 4 Channels relays can be used alone or with Arduino and other
microcontrollers applications. This relay module uses active low data signals to
selectively switch on four 5V relays, each capable of handling 10A loads.
Onboard LED indicators lit up when a relay is switched on. Screw terminals for
relay outputs and is clearly marked. 0.1" header for voltage and signal input.
2-relay module also available,
Operating Voltage: 5V
Stand by Current: 15ma
Operating Current: 50ma
Output Contacts: 250V/10A SPST
Input Trigger : Hi or Low Voltage Level (selectable)
Size: 50 x 55 x 18mm.
Weight: 62g